Which of the following best defines a scientific law? A.
an opinion that cannot be tested through scientific experimentation
B.
a description of a specific relationship under given conditions in the natural world
C.
a rule that tells people how they should or should not behave in public
D.
a possible explanation for a phenomenon on which no scientific research has been done

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.